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73 Magazine (Amateur Radio Today)

73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne Green. The magazine title, 73, means "best regards" in amateur radio lingo. Green, a former editor of CQ Amateur Radio magazine, published the first issue of 73 in October 1960.

At that time, the magazine was headquartered in Brooklyn, New York. Among contributing editors was author and radio personality Jean Shepherd, K2ORS. The magazine was a pioneer promoter of SSB, FM, solid-state, easy construction projects, and the marriage of personal computing and amateur radio. His interest in microcomputing led Green to found several of the early personal computing magazines, including "Desktop Computing", Kilobaud Microcomputing, and 80 Micro, among others. Green was involved in the founding of Byte Magazine, another early and influential microcomputer magazine, later published by his wife, Virginia Londner Green. Since the summer of 1962, 73 was based in Peterborough, New Hampshire. At the peak of its popularity in the 1970s and 1980s, individual issues of 73 totaled more than 300 pages of advertisements, articles and commentary. Heading each issue was Green's editorial column, "Never Say Die", in which he often criticized the American Radio Relay League and his magazine's competitors for their perceived shortcomings. The title "Never Say Die" was a backronym for Green's amateur radio call sign, W2NSD.

After completing 43 years of publication, 73 Amateur Radio Today magazine ceased publication in October 2003. Publisher Wayne Green cited financial pressure from reduced advertising revenue as the prime reason for shutting down publication of the magazine.

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TOPIC
amateur radio 489
power supply 467
antenna 458
amateur 444
frequency 402
radio 376
mhz 374
ham radio 319
power 275
ham 232
meter 202
output 183
circuit 165
radio today 153
front panel 141
receiver 141
feedback card 136
voltage 117
repeater 111
toll free 82
radio club 81
ihe 75
signal 69
web site 66
kit 60
magazine 55
packet radio 50
morse code 48
input 44
radio shack 44
transmitter 44
audio 41
flea market 41
circuit board 39
printed circuit 33
khz 31
radio amateur 31
tor 31
matching case 30
residents add 30
slow scan 30
low power 29
tlie 29
power supplies 28
transistor 28
signal generator 27
antennas 25
power output 25
radio amateurs 25
amateur net 24
noise figure 24
field day 23
oscillator 23
master charge 22
plate current 22
qso party 22
ssb 22
radio book 21
antenna tuner 20
call toll 20
case set 20
thai 20
crystal 19
high voltage 19
barrel kit 18
smart patch 18
test equipment 18
hams 17
heavy duty 17
time base 17
amateurs 16
extra class 16
amplifier 15
high power 15
local oscillator 15
watts 15
watts pep 15
book shop 14
digital 14
output voltage 14
frequency counter 13
rtty 13
tuning 13
linear amplifier 12
photo 12
radio electronics 12
satellite 12
field strength 11
mystic avenue 11
square wave 11
swr 11
tufts radio 11
battery 10
call call 10
driven element 10
filter 10
ground plane 10
input signal 10
mfj 10
switching power 10
tank circuit 10
tone burst 10
tube 10
base station 9
card circle 9
coil 9
dummy load 9
frequency range 9
model 9
versa tuner 9
watts output 9
arrl 8
crystal oscillator 8
current flow 8
diode 8
final amplifier 8
gain control 8
hewlett packard 8
july 8
money order 8
noise 8
phone patch 8
qrp 8
study guide 8
touch tone 8
vhf 8
call sign 7
dual band 7
electronics 7
fcc 7
full scale 7
grid 7
heat sink 7
los angeles 7
quarter wave 7
sine wave 7
supply voltage 7
tion 7
vacuum tube 7
weather satellite 7
wire 7
amp 6
audio output 6
august 6
band 6
coax 6
factory wired 6
flip flop 6
icom 6
impedance 6
low pass 6
magnetic field 6
modulation 6
packet 6
prices subject 6
qsl cards 6
radio service 6
remote control 6
wayne green 6
zener diode 6
balanced modulator 5
battery pack 5
capacitor 5
citizens band 5
civil defense 5
cold fusion 5
digital port 5
erm 5
fast scan 5
general coverage 5
gmt september 5
grid dip 5
grounded grid 5
integrated circuit 5
integrated circuits 5
kansas city 5
list price 5
low cost 5
low noise 5
meter meter 5
meter resonator 5
meters 5
plate 5
plate voltage 5
power meter 5
product detector 5
program 5
pvc pipe 5
reflected power 5
standing wave 5
tape recorder 5
volts 5
antenna system 4
april 4
atv 4
center 4
class license 4
coaxial cable 4
code 4
data 4
LANGUAGE
english 509
SHOW DETAILS
Title
Date Published
Creator
73 Magazine December 2002 (#505) Commercial-Quality Function Generator - Will you outlive it -or vice versa? ...... K8IHO 10 Shedding Some Light on Dimmers - Why not put one of these triacs to use? ...... W2GOM/7 22 Eager for Meager - Try an 11m vertical on 160 ...... AD1B 24 Shack Switch for Foot Fetishists - Not that it's That kinky ...... WA2OKZ 27 Ashore at Sacrifice Rock! - The saga of a masterful DXpedition ...... VU2SBJ 28 Hamfest Success Formula - How to make sure your 'fest is a...
( 1 reviews )
Topics: radio, frequency, amateur, antenna, mhz, ihe, thai, cap, december, amateur radio, radio today, web...
73 Magazine December 1999 (#470) The X(Mas)-Files ...... Staff 6 Big-Time Bench Supply - This highly regulated SCR design might be overkill, but it's still fun to build ...... Sellen 10 Secret Death Ray - Or is HAARP a useful science tool? ...... N7MGT 14 TV Tutor - How to get started in SSTV ...... ZL1AAN 22 Why Not Renew On-line? - Here's how to untangle the FCC Web ...... AC3L 24 Read All About It! - Part 1 of Techno-Trivia from The Hertzian Herald ...... K8JWR 26 A Cold Meal and a Hot Radio...
Topics: radio, amateur, antenna, mfj, voltage, ham, mhz, power, frequency, amateur radio, radio today, mfj...
73 Magazine (Amateur Radio Today)
7,229
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73 Magazine May 1982 (#260) Pacific Odyssey - the Kingman/Palmyra adventure ...... KB7NW 12 Top-Notch for Top Band - super antennas for 160 ...... N3BEK 26 The Fun-Amp - 20 Watts out ...... WA0RBR 32 The CCD Antenna Revisited - does it measure up on 40m? ...... W4ANL 40 Antenna-Raising: The Good-Neighbor Policy - sidestepping civil war ...... AK5Q/4 42 'Lite Receiver IV - part I: building it is a breeze ...... WA40SR, WA4CVP 48 TVRO Sound Decoders - Satellite Central, part VI ...... Gibson 58...
( 2 reviews )
Topics: antenna, amateur, mhz, radio, magazine, tor, power, frequency, pth, amateur radio, power supply,...
73 Magazine October 1979 (#229) Extremely Low Frequency Radiation: Cause for Worry? - studies on ELF are inconclusive, but the battle is joined ...... WB2NEL 34 An LED Display for the HW-2036 - eliminates unwieldy thumbwheel switches ...... WA4BZP 36 It's a Wattmeter... It's an Swr Bridge.. It's Swattmeter! - a super home-brew project ...... K4LBY 42 The Double-Sawbuck QRM Annihilator - 3-IC circuit yields perfect CW ...... WA5QAP 50 Center Insulator for your Next Antenna - do it yourself with...
Topics: mhz, frequency, antenna, output, power, radio, amateur, audio, meter, amateur radio, power supply,...
73 Magazine (Amateur Radio Today)
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73 Magazine April 1982 (#259) Watching the Weather - a cheap and easy conversion ...... KA9GDL 10 The Sinkhole That Ate Winter Park - hams vs. hole ...... KA4RUL 18 Operation Skywarn - tracking tornadoes with two meters ...... WB5ZAM 24 Measure Ohms with Your Calculator? - yes, and accurately, too! ...... Johnson 28 Scanning with the IC-280 ...... N7AAD 36 Detect Killer Tornadoes - use an ordinary TV set ...... K2VJ 50 TVRO Dish Selection Tactics - Satellite Central, part V ...... Gibson 54...
Topics: amateur, mhz, antenna, radio, power, kit, frequency, magazine, model, amateur radio, power supply,...
73 Magazine September 1982 (#264) Micro Modem - a RTTY TU designed for computers ...... WA4CKQ 10 F1 for the Hot Water 101 -all the way with FSK! ...... K0JH 20 No-Frills RTTY - $2OO and you're on the air ...... WA4STO 24 Incredibly Simple RTTY - receive it on your TRS-40 ...... WQXI 28 The RTTY/Tri-bander Marriage - enjoy the 100% duty cycle ...... K0ARC 32 Confessions of a Counter Evolutionary - part II ...... WAZFPT 38 Double Trouble 0n 50 MHz - Home-Brew Contest runner-up ...... KL7CLK 58...
Topics: output, antenna, mhz, rtty, amateur, input, frequency, radio, magazine, power, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine April 1977 (#199) Shoot the Moon! ...... K3BPP 44 Frustrating The Thieves ...... WB0GGT 46 Automatic Autopatch Release ...... WA1RTD 52 Emergency 911 System ...... WA2RXQ 54 The Downspout Vertical ...... K8ANG 55 RTTY? What's That? ...... WA6CPP/WA7PEI 56 Do-It-Yourself Photosensitizing ...... KL7AE 57 Making Your Own PC Boards -Part II ...... Smith 58 Curing Mobile Noise Miseries ...... G3BID 64 An Intelligent RTTY Station ...... K7YZZ 72 Interrupts Explained! ...... ZL1TRM 76 CW...
( 1 reviews )
Topics: amateur, radio, mhz, kit, antenna, power, meter, frequency, circuit, repeater, circuit board,...
73 Magazine December 1976 (#194) Go Tone for Ten - simple subaudible encoder ...... WB6GON 22 World's Simplest Five-Band Receiver? - using an AM transistor radio ...... K3QKO 28 How Do You Use ICs? - part IV ...... WA2SUT/NNN0ZVB 36 Hamming 101 - another Cabrillo College pioneering program ...... Inman 40 A Super Cheapo CW IDer - for FM repeaters and RTTY ...... K4EEU 46 The ZF Special Antenna - double-D "beam" ...... ZF1MA 51 CT7001 Clockbuster - the ultimate clock / calendar (for...
Topics: mhz, frequency, power, radio, amateur, antenna, output, kit, meter, circuit, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine May 1979 (#224) CB to 10 - part XVIII: several PLL rigs ...... K9PS 30 PROM IDer for Longer Callsigns - don't be caught short ...... W4VGZ 34 The W7GAQ Key Collection - 250 museum masterpieces ...... K7NZA 38 Proper FM Transceiver Adjustment - good club project ...... VE3AVY 44 Dual-Band Smokey Detector - Super Scooper does it all ...... W1SNN 48 The DXer's Secret Weapon - costs you nothing ...... W6BKY 64 Foiling The Mad Kerchunker - frustrate him with this circuit .........
Topics: mhz, amateur, radio, kit, frequency, antenna, repeater, power, model, amateur radio, radio club,...
73 Magazine December 1977 (#207) Inside Ten-Tec - QRP innovators ...... K4MDK 34 The History of Ham Radio - part V ...... W9CI 38 Try BCB DX! - when you're tired of twenty ...... WB2BJH 42 Build An Engine Analyzer - use your scope! ...... WA6THG/KH6 46 More Repeater Control Devices - control unit/audio interface ...... W7JSW 50 How Do You Use ICs? - part VIII ...... WA2SUT/NNN0ZVB 56 Finally! A Practical Discriminator! - metering system, that is ...... K4GOK 62 A Kilowatt Alternative - try a...
Topics: mhz, frequency, amateur, kit, circuit, power, radio, output, antenna, meter, power supply, amateur...
73 Magazine December 1997 (#447) Distributed Capacity Folded Loop - This ceiling-mount antenna will really go to your head! ...... W6NBC 10 How to Silverplate RF Tank Circuits - A simple and inexpensive process to reduce losses ...... WB2CQM 18 Build Your First Kit! - Just follow one hams simple advice ...... N0BLX 24 Limited Space Antenna - Short of real estate? This might help! ...... HL9BK/K2KSY 27 How to Build A Great Ham Club - Good advice from the PR master ...... W2NSD/1 29 Electronic...
Topics: amateur, radio, antenna, loop, ihe, ham, circuit, solder, kit, amateur radio, radio today, special...
73 Magazine (Amateur Radio Today)
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73 Magazine August 1982 (#263) Poor Man's Spectrum Analyzer - another 73 breakthrough ...... WB5IPM 10 The AC4YN Story - a Tibetan adventure, circa 1936-1937 ...... G5YN 32 "Smart" Squelch for SSB ...... W9MKV, W9YAN 44 The Ultimate Fuse - ac overload protection ...... W2OLU 52 Multi-Purpose Peak Adapter - don't settle for being average ...... K9EUI 54 The $100 TVRO Receiver - Satellite Central, part VIII ...... Gibson 60 VUM: Volume Units Meter - makes measuring decibels easy .........
Topics: mhz, frequency, amateur, antenna, output, power, radio, voltage, input, meter, amateur radio, power...
73 Magazine December 2001 (#493) Microwind to the Rescue! - Let the wind keep your emergency batteries charged ...... WA8YKN 10 Subdivision Subterfuge - A Houston homeowner handles his hamming ...... KD5IDU 17 IOTA -AS096 - That's St. Mary's Island to you ...... VU2SBJ 20 Bare Bones Battery Booster - A good project - as long as you understand the dangers and limitations ...... N0GJ 23 VOM Primer - This overview is helpful for beginners and old-timers alike ...... W2GOM/7 28 Travels with Henryk...
Topics: radio, amateur, antenna, ham, photo, december, meter, hams, tion, amateur radio, stepper motor,...
73 Magazine December 1981 (#255) Cold Comfort - an HT to the rescue at fifteen below ...... KA1D 12 Review: The Rex Bassett TLM-2 Mobile Mount - banish your fear of flying ...... KAlLR 18 Update Your CW Music Keyboard - play it again Sam ...... K5KL 20 Review: The Kenwood TR-7730 Transceiver - Let's get small ...... KA1LR 26 Joe Ham: The Consumer - do you fit the mold? ...... N6AVU 32 Bob Cooper: Profile of a Pioneer ...... N8RK 38 Satellite Channel Guide - part III ...... WESTSAT 44 Satellite...
Topics: antenna, mhz, amateur, frequency, radio, power, magazine, signal, satellite, amateur radio, power...
73 Magazine (Amateur Radio Today)
4,906
0
0
73 Magazine July 1980 (#238) The Rites of Spring - Dayton does it again ...... N1AUI, WB8BTH, KA1HY 30 One Step at a Time: Designing Your Own Ham Gear - part II ...... W4RNL 36 Top-Banding the DX-60B - put a classic rig on a classic band ...... WB1ASL 44 Forward into the Past! - a solid-state restoration project for a vintage BC receiver ...... W5JJ 48 ADDSCAN - now you can be two places at once ...... WB9FSC 52 Flat Cells are No Fun! - build a battery status monitor ...... WA3ENK 56 When Plus...
Topics: radio, amateur, mhz, frequency, power, ham, antenna, signal, magazine, amateur radio, power supply,...
73 Magazine (Amateur Radio Today)
4,903
0
0
73 Magazine July 1981 (#250) Dayton Dilemma '81 - which new gear do you buy? ...... KA1LR 22 The Fun-Ceiver - easy-to-build companion to February's QRP Fun-Mitter ...... WA0RBR 32 Review: The Kenwood TS-130s - a good rig done better ...... KA1LR 38 Review: The NCG-15 SSB/CW Monoband Transceiver - moving tale of mobile hamming ...... KA1LR 42 The Incredible Shrinking Antenna - give your vertical a top hat ...... W1GV/4 44 Review: The Micro Control Specialties Mark 3CR - a hassle-free repeater...
Topics: radio, antenna, amateur, mhz, frequency, magazine, power, receiver, meter, amateur radio, power...
73 Magazine (Amateur Radio Today)
4,851
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0
73 Magazine March 1982 (#258) The Porta-Peater The Instant Communicator - quick and easy does it ...... WA2BHB, AC2A, WA2UNN 12 Amateur Television's Stripper - a home-brew star ...... VE3CYC 20 Polishing Kenwood's R-1000 - a gem in the rough ...... K9EUI 34 Peaking and Tweaking Surplus CB Boards - the untold story ...... WB0NPN/8 38 OSCAR Pathfinder - a colorful way to track the satellites ...... WB6NQK 46 Which TVRO Antenna Is Best? - Satellite Central, Part IV ...... Gibson 52 Home-Brew a...
Topics: antenna, amateur, mhz, frequency, radio, power, audio, khz, receiver, amateur radio, power supply,...
73 Magazine January 1984 (#280) Breakthrough in Boston: The Birth of Crosslinking - Wl1UKZ built this box. It's small and it works. The question is whether you're ready for it ...... W1UKZ 10 Grenada Log - With a body-bag rig and gas from a bike, a ham hustled home the news. Here's history happening ...... K1XR, N8RK 20 Instant Pane Relief - This is the only notch filter for windows we've ever seen. If you can figure it out, you'll beat the feedline flu ...... KC8UD 22 Sound Off! - Here's the...
Topics: amateur, radio, antenna, mhz, tor, ihe, magazine, por, operator, amateur radio, power supply, radio...
73 Magazine (Amateur Radio Today)
4,724
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73 Magazine June 1982 (#261) Build This Digital Vfo - a microprocessor makes it simple ...... WA5VQK 12 Surviving the Unthinkable - part II : some practical ideas ...... AK0Q 30 A Split Personality for the KDK FM2015R ...... K0BV 40 Building for Beginners - happiness is a hot soldering iron ...... N1II 42 Coping with PC Boards - it's not easy to be virtuous ...... KC7M 48 'Lite Receiver IV - the second half ...... WA4CVP, WA4OSR 52 TVRO Transducer - waveguide-to-coax transition ...... WA4CVP,...
Topics: mhz, amateur, radio, antenna, frequency, kit, magazine, receiver, ham, amateur radio, power supply,...
73 Magazine December 1983 (#279) Code Practice: Have You Seen the Light? - This simple cpo is the best weekend project under the sun -or bulb ...... Davidson 10 Unlimited Guarantee for Power Supplies - Plan for the worst and you'll get the best, says KC0EW. He might be right ...... KC0EW 20 PC Boards in a Flash! - Make circuit boards without expensive equipment. All you need is a light and a fast switch hand ...... KA1FJR 28 "We've Been Boarded!" -When the Lorelei strayed into...
Topics: antenna, amateur, mhz, radio, ham, output, tor, magazine, power, frequency, amateur radio, power...
73 Magazine December 1979 (#231) New Product: Swan's Astro 150 SSB Transceiver ...... WB8BTH 32 Low-Cost Receiver for Satellite TV - this modular design uses readily available technology ...... N6TX 38 A Simple 2m/10m Crossband Repeater System - work the world with an HT! ...... K9EID 44 Audio Booster for Mil-Surplus Receivers - a must for headphone haters ...... McClellan 50 Working with FETs - part II : experiments with gain and supply voltage ...... WA2SUT/NNN0ZVB 54 Build this $50...
Topics: mhz, frequency, amateur, antenna, output, circuit, power, audio, radio, amateur radio, power...
73 Magazine (Amateur Radio Today)
4,601
0
0
73 Magazine April 1984 (#283) Doing It At Dayton - This unofficial Hamvention handbook helps attendees and dreamers alike ...... WA4BPI 10 Me and My Stupid Old PMOS Converter - At last, there's an easy way to get -12V from a +5-V power supply. Who said "trial and error"? ...... WB1HKU/6 14 Watch That Signal! -Haul out your old oscilloscope and turn it into a signal monitor. The conversion is easy and the price is right ...... W4RNL 20 Digital Design: How to Interface ICs - Connect ICs...
Topics: radio, filter, amateur, frequency, antenna, mhz, output, ham, magazine, radio shack, amateur radio,...
73 Magazine (Amateur Radio Today)
4,592
0
0
73 Magazine March 1980 (#234) Good-Bye to Autopatch Hassles - low-cost remedies to common problems ...... WB2LEI/4 30 Baudot-ASCII Converter Follow-Up - add a FIFO buffer for typing ease ...... VE4YD, VE4CM 34 CB to 10 - part XXII: more talk power for the TRC-11 ...... N4APN 38 The L With It - an alternative to the variable inductor ...... K4KI 40 Future Rig and Rigamarole - are you ready for faster-than-light propagation? ...... W6HDM 44 Gone But Not Forgotten - supermods for the HW-2021...
Topics: amateur, radio, mhz, antenna, power, frequency, output, march, meter, amateur radio, power supply,...
73 Magazine November 1982 (#266) A Perfect "10" - Timer, counter, logic probe - 10 functions in all. That's the Multi-Board One and you can build it ...... WA2BHB 10 Remote Control Your IC-701 - Simpler than commercial controllers, this home-brew circuit nevertheless features push-button band changing and frequency selection scanning, and expanded coverage ...... N2GW 14 Automatic Beam Aimer - Here is the scoop on adding set-and-forget convenience to your rotator control. Works with...
Topics: antenna, output, circuit, mhz, voltage, audio, frequency, magazine, power, power supply, amateur...
73 Magazine December 1998 (#459) Probing Auto Electronics - Help your neighbor identify his car's problem and be an electronic's hero! ...... W6WTU 10 Announcing the QRPeanut - Here's a compact QRP transmatch you can build for next to nothing ...... N5GZH 14 Keys to Better Operating - Yes, much of it is common sense ...... W6BNB 17 Electronic Bug Emulator - Put some personality back into your CW ...... W4LJD 27 Low-Voltage Detector - for a number of uses ...... W6WTU 31 George's XE-Ient...
Topics: radio, ihe, amateur, frequency, antenna, ham, power, thai, circuit, amateur radio, radio today, ham...
73 Magazine December 1972 (#147) AFSA IV SSTV Analyzer - Also works for RTTY ...... W0LMD 17 Single Conversion 2m FM - No 455 i-f needed - honest! ...... K1CLL 23 Miniature Tone Encoder - Fits inside the mike ...... WA9VGS 29 Tone Burst Decoder - For repeaters and such ...... W3JJU 33 Universal I-F Amplifier - Like for a 2m panoramic receiver ...... DJ1SK 38 Touch-Tone Connections - For repeaters ...... K3DSM 43 Simplest Audio IC Yet - Six parts and a battery! ...... W6YBP 49 Using Varactors -...
Topics: amateur, frequency, mhz, radio, voltage, circuit, repeater, meter, output, tuning, amateur radio,...
73 Magazine December 1991 (#375) The Simple TX TX - The perfect companion for the SupeRX receiver! ...... WA6IVC 10 Project INSPIRE: A Space Shuttle Experiment - Build a simple receiver to explore the wonders of the 60,000 meter band! ...... KG6EK 22 The QUAG-V - A high performance and wide bandwidth antenna for VHF and UHF ...... WB3AYW 36 Computerized Tuning for Ramsey Receiver Kits - It doesn't have to be expensive ...... N8KDD 42 Not Just Another Island - Weekend DXpedition activates the...
Topics: amateur, radio, mhz, antenna, frequency, ham, repeater, receiver, amateur radio, radio today, power...
73 Magazine October 1977 (#205) Communicate On 10.25 GHz - with a simple transceiver ...... WA3ETD 26 Home Brew Tilt-Over - the water pipe special ...... W4MEA 30 Minimize Feedline Loss - UHF buffs, front end center! ...... W2STM 32 How About 6 FM? - it's easy with a modified HE-50 ...... W3KBM 34 W.A.S. -Easily! - catching the last few ...... W7FGD 38 Fool the Wire Wizard - a computer would have helped ...... Simmons 42 Ultra Simple Diode Checker - for grab bag specials ...... K4GOK 44 Beat...
Topics: mhz, frequency, antenna, output, power, amateur, kit, meter, radio, circuit, amateur radio, tufts...
73 Magazine (Amateur Radio Today)
4,333
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73 Magazine March 1977 (#198) Pitcairn Island ...... VR6TC 28 How Do You Use ICs? - Part VI ...... WA2SUT/NNN0ZVB 36 Low Voltage Power Supply ...... VE3CWY 38 QLF? Not With the Great Lakes Sideswiper! ...... W6VX 44 The Capacitor Comparator ...... WB4MYL 49 Logical Storage for Logic ...... Stanfield 50 CB Can Do Some Things Better ...... Norman 56 A New Breed of Voltage Regulators ...... WA7ABV 62 High-Quality Video Display ...... WABVNP 72 Save Time with a Micro OS ...... Ferguson, Ferguson 90...
Topics: amateur, radio, kit, output, repeater, fcc, mhz, ham, frequency, circuit, amateur radio, power...
73 Magazine (Amateur Radio Today)
4,321
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73 Magazine June 1979 (#225) Add Digital Display for $50 - 100-Hz accuracy ...... K4IQJ 28 High-Performance Receiver Add-Ons - aren't ICs wonderful? ...... W5DA 32 A Solution to the Home-Brew Housing Shortage - building a box for your next project ...... W0IHI 38 How Do You Use ICs? - part XI ...... WA2SUT/NNN0ZVB 42 Customize Your HT144B - some nifty mods ...... W2KGV 46 Ultra-Simple CMOS Logic Probe - a single IC does it all ...... WB9PHM 50 "The Voice of Wolf Creek" - the KGCX...
Topics: amateur, radio, mhz, power, frequency, antenna, circuit, electronics, kit, amateur radio, power...
73 Magazine October 1969 (#109) A Super-Gain Antenna for 40 Meters - Nine db on 40 meters might be called "super" ...... W4NVK 8 DX Corner - WTW reports and other DX jazz ...... K2AGZ 12 FET Chirper - Signal source for peaking converters for optimum signal/noise ...... K6QKL 20 The Inside Info on Alexander Graham - Or how the telephone really works ...... W2FEZ 24 Leaky Lines - Similar to "Grumbles," but by a licensed amateur, not a CB'er ...... K2AGZ 28 Scope Calibrator -...
Topics: signal, frequency, modulation, amateur, arrl, radio, antenna, modulating, power, receiver, amateur...
73 Magazine October 1992 (#385) Packet on the Mac - Connect with the world without a TNC ...... KD6CMT 8 A 2 Meter FET Amplifier for Your Handheld - Build this simple, inexpensive amplifier ...... AA4AW 20 A New Look at Loop Antennas - Adding regeneration to ferrite-core and open-wire box loops ...... W2IMB 28 Baby Loopy - A half-wave, inductively-loaded loop ...... NH6XK 34 Noise Reduction Using Broadband Active Whip Antennas - Clear reception for the VLF/LF bands ...... WD4PLI/6 38 Packet...
Topics: radio, amateur, antenna, mhz, ihe, packet, ham, power, meter, amateur radio, radio today, feedback...
73 Magazine (Amateur Radio Today)
4,270
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73 Magazine June 1995 (#417) The N4UAU Super CW Station - This li'l gizmo does it all! ...... N4UAU 10 Collinear 5/8 - Wave Omni Antenna for 2 Meters - Commercial antenna performance at a home-brew price! ...... WD0O 18 Battery Monitor and Charge Controller - Check the voltage and keep the battery charged ...... K4GOK 32 An Inexpensive Morse Code Keyer - Build your own for under 10 bucks ...... N2YMW 36 Measuring the Antenna from the Shack - The half-wave length feedline and how to get it...
Topics: antenna, amateur, radio, mhz, ihe, meter, ham, tuner, power, frequency, amateur radio, radio today,...
73 Magazine October 1982 (#265) The Splattometer - visual overmod warning ...... W1BG 10 Digital Basics - part II ...... K4IPV 20 Dissertation Upon Roast Pig - the ultimate in surplus? ...... N6TO 28 Got an Apple? Want RTTY? - try this hard-core interface ...... WB6FBN/4 34 The Pleasures and Perils of Crankup Towers - don't lose your head! ...... K4TWJ 40 The Incredible Antenna Mark 2 - a complete HF allbander in a very small space ...... KL7ISA 44 The Amazing Beam reader - point it with your...
Topics: antenna, output, amateur, mhz, power, magazine, radio, ham, por, power supply, amateur radio, toll...
73 Magazine (Amateur Radio Today)
4,250
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73 Magazine March 1979 (#222) RAM Scan Your KDK - amazing flexibility for $30 ...... WB2JHN 26 The NCX-Match - build something useful ...... WA6NCX/l 32 The Memorizer Goes to MARS - expanded frequency coverage ...... KH6JMU 38 Build a Hybrid Capacity Meter - digital circuitry, analog display ...... WA4HUU 40 Power Plus! - a 20-Amp, adjustable, regulated dc supply ...... W6YUY 42 Reaching for the Top - why stop with the General ticket? ...... N1PL 46 Universal Alarm Circuit - detects heat,...
Topics: frequency, mhz, power, output, diode, antenna, amateur, kit, radio, amateur radio, power supply,...
73 Magazine December 1980 (#243) Who Really Invented Radio? - the twisted tale of Nathan B. Stubblefield ...... WB2NEL 36 In Search of the Elusive SES - track solar activity with this simple VLF receiver ...... WA3UER 42 An Even Better IC Timer - better than what? ...... WA0PBQ 46 Direct Printing FAX - Part II: constructing the facsimile recorder ...... WB8DQT 52 A 600-MHz Universal Counter - you'll freq out over this one ...... W4VGZ 58 Top-Banding the DX-60B - Part II: a companion vfo .........
Topics: mhz, frequency, antenna, power, magazine, radio, output, amateur, amateur radio, audio, circuit...
73 Magazine December 1978 (#219) A DXer's Dream Vacation - try sunny Montserrat ...... WB6JPZ 30 Close Encounters - the eyes of Texans are upon them ...... K8NQN 36 The Schizophrenic Triangle - a split-personality radiator ...... WA4JTJ 44 From CW to Computers - a digital modulation primer ...... N6RY 48 A 28 Cent Touchtone Mod - something for (almost) nothing ...... W9CGI 56 Space Age Surplus - your own Saturn V? ...... Endress, Endress 60 An X-Band Transceiver - more 10-GHz fun ...... W1SNN...
Topics: antenna, mhz, amateur, frequency, output, meter, radio, swr, circuit, amateur radio, power supply,...
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73 Magazine August 1984 (#287) Top-Notch Tuner Time - Can't get your signal out of the backyard? Build KC2NT's antenna matcher and hear what you've been missing ...... K2NT 8 Cheap Power Ploy - This rugged supply will give you more power than you ever dreamed possible. Have we gone too far this time? ...... K9QLL 10 Penn's Two-Tone Gadget - Clue one: We're talking about lab quality. Clue two: Get your junk box ...... W1BG 21 Yaesu, Icom Graft Revealed - Splice Icom's headset to Yaesu's talkie...
Topics: amateur, output, radio, ihe, mhz, frequency, antenna, tor, ttie, amateur radio, power supply, radio...
73 Magazine December 1990 (#363) Behold the BackPacket! - Go take a hike with packet radio ...... NW6H 9 Upgrade Your HD-4040 - KISS your Heath HD-4040 and keep AX.25 too! ...... N2BLI 19 The VOX Plus HT Accessory - Enjoy base station performance -with your HT! ...... WA2EBY 24 Pack Your Seabag, "Sparks" - Do you want to be a ship's Radio Officer? ...... N0MM 35 Audio Powered Tape Recorder Controller - Add convenience to your hamshack ......KE0UV 54 Ten-Tee's Hercules II Model 420 -...
Topics: radio, amateur, antenna, ham, audio, mhz, frequency, ihe, power, amateur radio, radio today, ham...
73 Magazine December 1982 (#267) The Hangman's 2-Meter Collinear - Make your tower do double duty. Drop this array from the top and get 6-dB gain ...... W1GV/4 10 Deep-Six Squelch Tails - Kerchunks take a dive with the addition of this audio delay ...... WA2NYE 14 Build Yourself A Paralyzed Beam - Go from east to west In less than a second with this 2-meter array. And put your rotator out to pasture ...... WB2WIK 24 Taming the 2-Meter Linear - It lives In the forest of spurious oscillations and...
Topics: antenna, mhz, frequency, amateur, power, radio, audio, receiver, rtty, magazine, power supply,...
73 Magazine October 1984 (#289) Find Fault with Your Coax - Is your cable really doing its job? Find out with this elegant detective method ...... K4IPV 10 The Aussie Parasol Beam - What has twelve corners, three bands, and uses 140 feet of wire? Hint: It's not a quad ...... W6TYH 20 The Incredible Broadband Bowtie - Truly designed for solid-state finals, this 75m antenna features 50 Ohms at the feed-and less than 1.5:l swr across the band ...... KC3HW 26 RX for Ailing Antennas - Maximize your...
Topics: antenna, amateur, radio, frequency, tion, rtty, ham, mhz, amateur radio, magazine, private patch,...
73 Magazine November 1977 (#206) Build The Omni-OSCAR! - practical omnidirectional antenna ...... K2OVS 24 Get Set For OSCAR 8 - details on the new bird! ...... W3HUC 28 Build An OSCAR 2m Transverter - make QRP days a success! ...... W2GN 32 Predicting OSCAR Propagation - not always simple ...... G3IOR 34 Try OSCAR Mobile - the ultimate DX test! ...... W2GN 40 Tic Tac Touchtone - a new mentod! ...... W9CGI 44 Visual OSCAR Finder - nice side effects! ...... WB2BWJ 50 Cheap Ears For OSCAR - an...
Topics: mhz, oscar, antenna, frequency, kit, power, satellite, meter, amateur, model, power supply, amateur...
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73 Magazine April 1994 (#403) Motorcycle Mobile! - Take ham radio two-wheeling ...... KC6QJB 10 The 40 Meter Full-Wave Horizontal Loop - Take your signal to the treetops ...... NH6XK 14 The Big Kahuna - A 15' high, 160 meter Distributed Capacity Twisted Loop Antenna ...... WA6QBU 20 A Sensitive Bandspread SWL Receiver - Aaah, the nostalgic smell of dust burning off tubes! ...... XE2/KB6EPO 32 A 2 Meter Half-Kilowatt for $1 per Watt - Build this VHF amp using vacuum-tube technology! .........
Topics: radio, antenna, amateur, mhz, power, meter, ham, ihe, antennas, amateur radio, radio today, ham...
73 Magazine January 1991 (#364) High Precision Frequency Standard - Use your TV set as a laboratory standard ...... Johnson 9 Scrounger's Guide to Recycled Electronics - Discover a gold mine of inexpensive parts ...... W5FG 22 An HF/VHF/UHF Marker Generator - Get on frequency for less than $10 ...... K84ZGC 27 A Parallel Port I/O Board - Control your world! ...... VE6BGL 29 The Three-Terminal Regulator - Multiple uses in one package ...... N9RF 40 Rose Parade Mobile - A high-tech HF remote...
Topics: radio, amateur, antenna, mhz, frequency, ham, output, tor, amateur radio, radio today, ham radio,...
73 Magazine February 1982 (#257) The Fun-Oscillator - a simple, goof-proof vfo for your QRP transmitter ...... WA0RBR 12 Build this Antennalyzer - you'll need a weekend ...... W1BG 16 Police Freqs for the TR-2400 - a sleepless night for the mod squad ...... N9AKX 26 Those Amazing Bobtails - the current-fed connection ...... W1XU 30 Shoot the Moon! - visual tracking for your EME array ...... W9CGI 34 CQ MARS de IC-2A - work new worlds ...... WD8JLW 46 The Father of FM - the tragic story of Major...
Topics: antenna, mhz, frequency, amateur, radio, signal, receiver, ham, magazine, amateur radio, toll free,...
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73 Magazine May 1984 (#284) From Base to Beams - Home-brew from the ground up - Here's how to build a tower and top it off with performance-proven antennas ...... W6TYH 10 A Little Gem for QRP - The T2FD antenna thinks it's a full-size rhombic. Feeding is believing ...... W8VFT 26 "The Tops of the Palm Trees" - 20,000 QSOs. Coral Sea. Banyandah ...... VK2BJL 28 How to Gain with PVC - This could be history's cheapest quad. Try water pipe on 2m ...... WB6BHI 37 Helicoids - Few people...
Topics: antenna, amateur, radio, lprint, mhz, khz, ihe, ttie, ham, amateur radio, radio club, power supply,...
73 Magazine December 1969 (#111) Quick, Easy, Dependable Transistor Diode Checker - For those who like checkered diodes ...... W6ICC 6 Did Samuel Morse Really Invent the Telegraph? - Telegraph? What's that? ...... W2FEZ 10 Combination Dummy Load/Attenuator Network - Also doubles as a hot plate for your coffee warming ...... W2EEY 14 Tuned Filter Chokes - The Easy Way - Can your filter chokes carry a tune? ...... W2OLU 18 Hey OM - You've Got Carrier There - "Drop dead, you...
Topics: circuit, frequency, amateur, output, crystal, power, meter, input, oscillator, mhz, amateur radio,...
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73 Magazine June 1981 (#249) Repeater at 102,000 Feet! - Canadian hams go up, up, and away ...... VE4FK 12 Digital Control for the Ham III Rotor - good-bye manual switching!...... WA0PBQ 18 Review: The Doppler Systems DDF-3003 - a review of the latest in direction-finding equipment from Doppler Systems ...... KA1LR 28 DF Breakthrough! - the "turkey" tracker we've all been waiting for ...... W7BEP 32 The History of Ham Radio - part XV ...... W9CI 48 Review: The VoCom Two-Meter Monkey -...
Topics: amateur, radio, antenna, mhz, frequency, power, magazine, fcc, ham, amateur radio, power supply,...
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73 Magazine March 1984 (#282) In Search of the Shuttle: Fun, Frustration, Fatigue - From Maine to Hawaii, our special correspondents gave W5LFL their best shots. Thank them ...... W5LFL 10 W5LFL report, Burbank, California ..... K6DUE 10 W5LFL Contacts ...... ARRL 11 W5LFL report, Saugus, California ...... WA61TF 12 W5LFL report, Westbrook, Maine ...... KlEFZ 14 W5LFL report, Nashua, New Hampshire ...... WB1BRE 16 W5LFL report, Lansing, New York ...... KO2X 20 W5LFL report, Jacksonville,...
Topics: amateur, radio, antenna, orbit, ham, led, mhz, ihe, repeater, amateur radio, morse code, ham radio,...
73 Magazine November 1984 (#290) Color Computer SSTV: Part I - Turn your CoCo into a complete SSTV terminal How? First, build this high resolution display system ...... K6AEP, WB8DQT 10 Wrap Up TVI! - Can you endure another evening without transmitting? Use this simple cure to choke out television interference forever ...... KR7L 26 But I Know How To Solder! - Anyone can dribble hot metal over a joint, bit it takes an artist to really solder. Are you a Picasso or a pig? ...... WD4S 28 Free-Form...
Topics: amateur, mhz, radio, filter, antenna, frequency, display, magazine, circuit, amateur radio, power...
73 Magazine December 1985 (#303) FM Your IC-730 - Put the icing on your ICOM-and discover why the 10m-FM craze is sweeping the nation! ...... N9DBX 18 Join the SWOT Team! - 2m FM is fun, but using a repeater won't challenge your skill. Turn the switch to SSB and find out what ham radio is really about! ...... KA3B 26 One-Chip Facsimile - We all talk about the weather; now you can see it on your Atari. You'll be amazed at how simple it is ...... WB8TPD 38 NOAA'S 2m UFO - Your weather radio is a...
Topics: antenna, radio, mhz, tor, power, amateur, ssb, amateurs, radio amateurs, signal, driven element,...
73 Magazine January 1982 (#256) Egad! A Nine-Tube Linear - results from the W7CSD test bed ...... W7CSD 12 Drama on Mt. McKinley - ice, snow, and amateur radio ...... W7KUF 18 The Simplex Autopatch - a telephone interface for everyone's two-meter rig! ...... WA7VZR 26 The Cheapskate - a checker for bargain diodes ...... K9QLL 30 Constant Current from a Voltage Regulator ...... WA4WDL 39 The Hesitator: A Windshield Wiper Control - a rainy day project ...... N4UH 40 TVRO Signal Source -...
Topics: amateur, mhz, antenna, frequency, radio, output, power, signal, satellite, amateur radio, power...
73 Magazine January 1978 (#208) The Go-first-Class Digital Tester - build this outstanding in-circuit logic monitor ...... W7BBX/4 24 The Unbeatable Base-Loaded Three-Element Rotary Vertical ...... W3KBM 22 Negative Numbers On A $9 Calculator ...... WB6IXT/7 32 Sideband Exposed! -the mysteries of SSB unveiled -why not understand it once and for all? ...... W2FEZ 34 IC Timer Review ...... W3HB 40 Forget Ohm's Law ...... Stanfield 46 Brew Up A Signal Generator ...... Staff 50 Reprogram Your...
Topics: output, frequency, mhz, power, kit, circuit, amateur, radio, receiver, input, power supply, amateur...
73 Magazine January 1979 (#220) The Italian Freq Generator - from Bologna to you ...... K7YZZ 24 Happiness is a WE-800 - proud owner loves his Wilson ...... K3JML 28 Explore the World of VLF - with this simple converter ...... W3QVZ 32 The S.H.A.F.T. - special tuning gadget for sightless hams ...... K5CW 34 A Remotely-Tuned Matchbox - ultimate operating ease ...... W4PSJ 38 Diodes of the Dead - eavesdrop on the great beyond ...... K5JRN 44 Building an Economy Receiver - junk box, here I come!...
Topics: mhz, frequency, antenna, output, amateur, radio, electronics, meter, circuit, amateur radio, power...
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73 Magazine August 1977 (#203) Dual Rhombic for VHF-UHF ...... W8DMR 24 Microwave Waveguide Details ...... Moak 28 Centerfed Specials ...... K4MDK 30 Recycle Your Receiver ...... W9VZR 32 Build a Double Bazooka ...... K4KI 36 Dirt Cheap Directional Array ...... WA4BKO 40 Instant PS Regulation ...... W3MR 41 Take Cover! ...... WB5ASA 44 Introducing the Intenna ...... Norman 46 The Zeppy Vertical ...... K5GP 47 A Cure for Antenna Self-Destruct ...... W9TKR 48 Quick Ante nna Insulators .........
Topics: antenna, mhz, kit, power, meter, frequency, model, amateur, circuit, wire, power supply, amateur...
73 Magazine November 1989 (#350) Sing for the unsung Heroes - Let's recognize our clubs selfless volunteers! ...... K5CVD 36 1989 Holiday Wish List - Some of the best values for holiday gifts ...... 73 Staff 60 FLAVORIG! - Have a Radio Shack Flavoradio? Turn it into a 80-meter CW transceiver! ...... KBlUM 12 The Bitchaser - Build this versatile piece of test equipment for digital circuitry ...... K4OND 18 Bargain Audio Frequency Meter - $10 and an easy evening of home-brew gets you this very...
Topics: radio, amateur, mhz, antenna, frequency, ham, amateur radio, feedback card, ham radio, power...
73 Magazine December 1993 (#399) Deluxe Communications Audio Board - Enhance your audio with this practical add-on ...... WD4PLI 10 Resolving 2 Meter/Cable TV Interference - A winning strategy for keeping the peace, and staying on the air! ...... NM8R 18 Five-Element T-Match VHF Yagi - Excellent performance characteristics on 2 meters ...... KA0NAN 28 Remote Tuned Active Antenna - Tune this easy amplified antenna without leaving your chair ...... W2IMB 32 Melt Your Way to Better Breadboards -...
Topics: radio, amateur, antenna, mhz, ihe, ham, frequency, repeater, audio, amateur radio, radio today,...
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73 Magazine June 1984 (#285) Easy Berardi Building - You can count on this simple frequency counter from Arizona ...... Berardi 10 Don't Grope in the Dark! - Let a simple card-file box be the brains of your own emergency lighting system ...... W7RXV 16 Flying High with Two - Here's how a hand-held makes for some ultralight Michigan madness ...... WB8DQT 20 Creason's Do-It DVM - The more Sam builds, the more smart people pay attention ...... K6EW 26 Meeting Ends Make - These ten tips will better...
Topics: amateur, antenna, radio, mhz, ham, ttie, tor, magazine, tion, amateur radio, radio club, power...
73 Magazine October 1986 (#313) Just the FAX, Ma'am - Check out NOAA's eyes in the sky with this one-chip weather FAX decoder for your C-64 ...... WB8TPD 24 Make the Switch to PIN Diodes - Unbelievably fast, PIN diodes can drag your tube-bound transceiver into the 80s with silent switching ...... OA4KO/YV5 28 Shoestring Shortwave - Remember when rigs were built on pine bases? Try KICLL's converter for old time's sake ...... K1CLL 34 The End of the Rope - Some days you just want to mail your...
Topics: amateur, radio, antenna, mhz, repeater, frequency, receiver, ssb, power, amateur radio, power...
73 Magazine December 1995 (#423) A Portable Integrated 20 Meter SSB/CW QRP Ham Radio Station - A ten pound powerhouse ...... KB4ZGC 10 Nostalgia For The Future - High performance crystal radio utilizes a high-efficiency JFET detector and dual resonant circuits for superior performance ...... KC3ZQ 14 A Perspirational Message ...... W2NSD/1 17 Jan Mayen - A Special DXCC Country ...... AJ0N/LA6US 18 Key It! ...... KB1UM 26 A Milliohm Adapter For Your DMM - Expand your meter sensitivity .........
Topics: radio, amateur, antenna, ham, repeater, power, mhz, ihe, hams, amateur radio, radio today, ham...
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73 Magazine August 1979 (#227) You Can Watch Those Secret TV Channels - a complete MDS receiving system ...... K0JB, K0FQA 32 Simple Dual-Voltage Supply - power for many projects ...... W4VCZ 44 Bargain Zener Classifier - Novice project ...... WD8AAM 46 What the Hell is a Decibel? - 1/10 of a bel, of course ...... WA5EBB 48 Frosting for the FT-901DM - simple improvements for Yaesu's superb performer ...... K4TWJ 50 Mods for the Mark - desirable extras for your Wilson HT ...... K9EID 52 The...
Topics: antenna, amateur, mhz, radio, meter, power, voltage, frequency, output, amateur radio, power...
73 Magazine February 1984 (#281) This Antenna Is Too Good To Be True - It's cheap. It works well on all bands. And it radiates a super signal ...... W4HDX 10 Construct the Minuteman Timer - As faithful as a grandfather cock. This timer tells when to ID - and when not to ...... KA8QBQ 14 The Secret of Remote Control - In Inside those miniature planes lie some sophisticated circuits ...... WB3BQO 18 Calculate Your FT-101 - Here 's how to treat your trusty FT-101 to a truly automatic digital...
Topics: amateur, antenna, radio, erm, mhz, frequency, tor, magazine, output, amateur radio, power supply,...
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73 Magazine March 2001 (#484) Way Cool Rocket Project: Part 2 - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 10 Build Yourself an NVIS - If you want to talk to the guy in the next county on HF, of course ...... VE2EQL 18 Inside Digital TV/VCR Tuners - Part 7: Conclusion ...... W6WTU 19 Build This Variable AC Bench Supply - If you can find a Variac transformer, that is ...... K8IHQ 23 $5 Infrared Remote Tester - Build this and look like a hero .........
Topics: radio, antenna, amateur, ham, qrp, transmitter, kit, mhz, receiver, amateur radio, radio today, web...
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73 Magazine July 1982 (#262) Log of the Colorado Queen - wet, wild Field Day fun ...... K3PUR 12 CB to CW? - converting the Hy-Gain board ...... W1BG 18 Hands Across the Water - CW lives on historic Cape Cod ...... KAID 38 A Three-Piece CP - battery not included ...... WB5WAF 46 Coherent CW for VHF - will it work? ...... W3QVC, VE3DPB 48 Electric Health via Negative Ions - combating an invisible menace ...... WB0GX 52 The Very, Very Best CW Filter? - costs under ten bucks ...... WB4TYL, AG5G 56...
Topics: mhz, amateur, antenna, frequency, radio, power, magazine, receiver, circuit, amateur radio, power...
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73 Magazine March 1978 (#210) The New, Improved "Best Keyer Yet" - updating MINI-MOS ...... K4JEM 22 The Powerful Grounded Antenna - thrives on poor soil ...... W0SII 26 How To Cut Costs On Power Supplies ...... W9HDA 28 You, Too, Can Go Digital ...... K2RB 32 Old Receivers - A Hidden Gold Mine - updating those '405 receivers ...... W6GXN 36 Old Rigs Can Live Again! ...... K41PV 40 Novices, Paddle Your Way To Happiness - super deluxe Novice keyer ...... W0OGX 44 How Many pF is That...
Topics: power, antenna, mhz, frequency, kit, circuit, output, voltage, meter, receiver, power supply,...
73 Magazine September 1993 (#396) Computer Control for Beam Antennas, Part II - Give your station a smart, new twist ...... K4OND 10 The W2EKY "Icky-Stick" Antenna - Hit the roof with an improved ground-plane vertical ...... W2EKY 18 Compressing the W3EDP - Build this unique multiband restricted space antenna ...... G2BZQ 20 Distributed Capacity Twisted Loop - An indoor 40 meter antenna for five bucks ...... WA6QBU 26 Evolution of an Antenna - Build a new version of the classic...
Topics: radio, antenna, amateur, mhz, ham, repeater, frequency, amateur radio, radio today, ham radio,...
73 Magazine September 1980 (#240) In Profile: Dick Bash KL7IHP - the father of The Final Exam speaks out ...... N1AUI 40 That Mysterious Mode: 10 FM - an examination of propagation phenomena ...... WB2EQG 44 The World Above 430 - part II: next stop, 1296 ...... W9CGI 52 Bridge Over Troubled Audio - another method for driving speakers ...... K4IPV 56 Load a Lawn Chair - even if you can't carry a tune, you can build this matchbox ...... WB5PPV 60 The Penultimate CPO - a non-discrete LSI device...
Topics: mhz, output, frequency, antenna, power, signal, amateur, audio, kit, input, amateur radio, power...
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73 Magazine April 1978 (#211) Ecstasy In Multimeterland - build this autoranging marvel ...... WA4AIH 24 How To Succeed On 1296 - cat-food can 50-Watt amplifier ...... W4UCH/2 32 How Do You Use ICs? - part IX ...... WA2SUT/NNN0ZVB 44 You're Still Using Tubes? Yeccch! ...... W6HPH/G5AWI 50 The Challenge Of 10.5 GHz - use it or lose it to Smokey ...... W1SNN/WR1AFE 60 In Search Of the Ultimate - an incredible counter calibrator ...... W6YUY 66 Super Deluxing the TR-33 ...... WA6JFP 72 Feeding A...
Topics: frequency, amateur, output, power, radio, mhz, kit, circuit, antenna, meter, amateur radio, power...
73 Magazine September 2002 (#502) Amplifier Testbench Report - Here's a look at broadband amps that's packed with useful insight ...... K8ZOA 10 2m/70 cm quad Revisited -Part 2 - Try out this new, improved update to a CQ article (July 1999) ...... K8IHQ 18 General-Purpose Interface Board for the ISA Bus - A simple, inexpensive alternative for interfacing resl-time, home-brewed applications to the PC ...... AB2LX 20 Inside a Lampkin - More secrets of deviant behavior ...... W6WTU 26 You Can...
Topics: amateur, radio, mhz, antenna, frequency, deviation, ham, signal, web, amateur radio, radio today,...
73 Magazine January 1981 (#244) Emergency Tone Alert System ...... WB5UVC, WB5ASA, WB5PRD 42 WWV-to-80 Meter Converter ...... N7BH 48 Cheap and Simple - your basic 13.8-V, 25-A power supply ...... WA9VLK 50 Direct Printing FAX - part III; testing and operation ...... WB8DQT 54 Unplug It, Dummy! - safety for the traveling ham ...... WB9SKX 58 Power Plus for the Omni - Improving on Ten-Tec's power supply ...... WA4IQQ 60 Oddball Offsets for the KDK-2015R - make a good rig better ...... WB6MYF The...
Topics: mhz, power, antenna, frequency, amateur, radio, magazine, circuit, output, power supply, amateur...
73 Magazine November 1980 (#242) VSWR... Automatically! - simplify antenna matching with this tune-up aid ...... WB0GWP 42 Welcome Back, Barry! - the Scottsdale RC's most famous member ...... K7NZA 52 Return to Shangri-la - a visit with 9N1MM ...... W1QMS 58 Direct Conversion lives! - excitingly simple receiver project ...... ZS6UP 64 Hams vs. Hurricane Allen - 73 aids St. Lucia relief efforts ...... N8RK 70 Tune In the Wind - a do-it-yourself hot-wire anemometer ...... VE7DKR 80 Direct...
Topics: mhz, antenna, frequency, power, magazine, amateur, radio, model, meter, amateur radio, power...
73 Magazine December 1974 (#171) Making Nicads Behave ...... K2OAW 24 Zillions of Parts For Nothing ...... WB9MQY 36 C31 or Bust! ...... DK8SQ 39 Wind Indicator For Your Shack ...... W5ZG 41 Modified Weather Satellite ...... WB8DQT 48 A Logical Keyer? ...... K2QKO 53 The Perils of Novicehood ...... WA1SNG 58 Can FM Simplex Be Solved? ...... WA6CPP 65 Meters And Their Faces ...... W5IUR 70 Slow Scan Tape Secrets ...... K2ULR 73 Simple Probe Logic Check ...... WA3SWS 76 Public Service Band...
Topics: amateur, mhz, jan, voltage, meter, antenna, radio, sstv, oct, battery, amateur radio, wind...
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June 1978 (#213) Happiness Is Being A Ham Manufacturer - 73 visits Cushcraft ...... W2NSD/l 30 Extended Double Zepp - old-timer's delight still works ...... W6TYH 34 New Dipole Feeder - tuned feeders, yet! ...... AA6AX 38 The Cliff-Dweller's Delight - how to operate from an apartment ...... WA2UVC 40 Wait Till You Try 16 Elements! - 15dB gain on 2m is a real kick ...... WA8FCA 42 Working 15m With A 20m Beam - by adding three more elements ...... W8ZCQ 46 A Better Feedthrough For Cables - the $2...
Topics: antenna, mhz, meter, amateur, vertical, antennas, frequency, wire, radio, coax, amateur radio,...
73 Magazine December 1996 (#435) Automatic Packet Reporting System - You can track anything with this! ...... WB4APR 10 Shooting Straight Up - NVIS: A neglected short-range technique ...... XF1/KB6ASH 22 Build This 6m Attic Antenna - A simple stealth antenna protect ...... KA0NAN 28 Circulators Anyone? - Keep the traffic flowing ...... W6OIU 30 Hams on the Information Highway, Part 2 - How you can easily find and start using Usenet groups ...... KB7NO 33 The Solder Slurper - Build our own...
Topics: radio, amateur, antenna, aprs, frequency, mhz, ham, power, thai, amateur radio, radio today, ham...
73 Magazine November 1981 (#254) The Satellite TV Challenge - 73 magazine's answer ...... N8RK 14 Space Spinoffs for Amateur Radio - the makings of a communications revolution ...... WA1DCP, W2IKQ 18 How Big A Dish? - Satellite central, part 1 ...... Gibson 20 Satellite Channel Guide - Part 1 ...... WESTSAT 24 Satellite TV Receivers - is there a better way? ...... K4TWJ 26 Spread Spectrum - a report from AMRAD ...... WB3KDU 32 A Visit with SV0AY - the road to paradise ...... N1BEP 36 Review:...
Topics: antenna, frequency, amateur, mhz, radio, magazine, power, receiver, output, signal, amateur radio,...